Answer:
LED backlit 4K UHD TVs (including Samsung's new QLED line) are technically really still LCD TVs with a higher resolution and are taking the name 4K UHD or 4K Ultra HD. 4K LCD TV is a more appropriate name. ... While OLED TVs are still more expensive than good 4K LED TVs, the gap has narrowed.
Wrong category, but it’s a 20% decrease.
B: The emergency <em>lights</em> atop the fire trucks <em>were</em> flashing. Lights is your noun and were acts like your verb.
for A it should be: The exhibits on the lower level are not currently open to the public.
for C it should be: That man, wearing sunglasses, seems to be an undercover police officer.
for D it should be: Perry, like his younger sister Pauline, writes very neatly.
Hopefully this helped and good luck.
